Thanks a lot, yes indeed that's the question I have but I wasn't just not sure how to ask it. So if I understand it clearly, roughly speaking if there is a device on the switch that saturated the pipeline then all other devices are slowed, but in router with the QoS settings you could guarantee a minimum bandwidth for each of the device? So if I do not use any sort of QoS settings would that essentially make router almost like a switch in terms of routing traffic? I understand obviously routers these days have a lot more functionality like VPN gateway or printer server but let's just ignore those for the sake of discussion.